Bloomberg reports that Toyota’s engineers have reached an “advanced stage” of research on a new “induction”-type electric motor which holds the promise of freeing the Japanese automaker from dependence on so-called rare-earth materials. These elements, including neodymium and dysprosium, are used to strengthen the magnets used in traditional electric motors and generators, and are crucial to the production of everything from electric and hybrid cars to wind turbines and guided missiles. China currently controls over 90 percent of the world’s supply of rare-earth materials, and has recently cut exports quotas, raisingtensions between China and Japan.